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出典:Wiktionary
axial tilt (複数形 axial tilts)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/24 22:00 UTC 版)
In astronomy, axial tilt (also called obliquity) is the angle between an object's rotational axis, and a line perpendicular to its orbital plane. It differs from inclination.
Axial tilt